Question

道歉的标题道歉。我目前有一个编辑表单，其中可以选择产品，详细信息显示在可以编辑的表单中。不幸的是，编辑产品表中的每个产品时都会编辑，而不仅仅是选择的产品。要选择我正在使用的产品名称= productnameinput等等（下面的代码）

尝试在更新查询的末尾添加以下WHERE语句：

// edit product in database
$query="
  SELECT * FROM category
";
$result = $DBH->prepare($query);
$result->execute();
$categories = $result->fetchAll();
//we need to select all products frist
$query3 = "
  SELECT * FROM product
";
$result3 = $DBH->prepare($query3);
$result3->execute();
$allProducts = $result3->fetchAll();

//When the Product is selected this function is run
  if (isset($_POST['choose'])) {
    $query2 = "
      SELECT product.*, category.* FROM product LEFT JOIN category ON category.CategoryID = product.CategoryID WHERE product.ProductName = :prodname
    ";
    $result2 = $DBH->prepare($query2);
    $result2->bindParam(':prodname', $_POST['product_name']);
    $result2->execute();
    $product = $result2->fetch();
  }
  //When the Update button is Pressed
    if (isset($_POST['update'])) {
      $query4 = "
        UPDATE product SET CategoryID = :newCatId,  ProductName = :newProdName, ProductDescription = :newProdDesc, stockCount = :newStock WHERE product.ProductName = :prodname
      ";
      $result4 = $DBH->prepare($query4);
      $result4->bindParam(':newCatId', $_POST['newcategory']);
      $result4->bindParam(':newProdName', $_POST['productName']);
      $result4->bindParam(':newProdDesc', $_POST['productDescription']);
      $result4->bindParam(':newStock', $_POST['stockCount']);
      $result4->bindParam(':prodname', $_POST['product_name']);

      $result4->execute();

    }

PHP：

Pack

Answer 1

您正在更新整个表格，更新中没有过滤器

$query4 = "
    UPDATE product SET CategoryID = :newCatId,  ProductName = :newProdName, ProductDescription = :newProdDesc, stockCount = :newStock
  ";

查询更新所有记录而不是记录哪些匹配输入？

1 个答案: